"....young, energised vs matronly...." would probably be seen as discriminatory by the Equality Act 2010 in a combined age/sex claim, in my view. "
Why did you post this LB - just felt like stirring it ?
You are , of course , correct that a company saying this would be liable, but this is a private individual expressing his/her thoughts as an opinion and therefore not subject to this legislation.
So once again, why ?